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biology: Vertebrates

vocabulary vertebrates

QuestionAnswer
chordate members of the phylum chordata
notochord long supporting rod that runs through chordates body just below the nerve chord
pharyngeal pouch paired structures in the throat (pharynx) region
vertebra the backbone, replaces the nhotochord. is made of individual segments
atrium a large muscular chamber that serves as an one way pump for blood
ventricle a thick-walled muscular chamber the actual pump portion of the heart
oviparous fishes whose eggs hatches outdside the body
viviparous the eggs stay in the mothers body
ovoviviparous the eggs stay in the mothers body
mammary gland gland in the mammals that produces milk to nourish their young
ectotherm animal that relies on interactions with the enviroment to help it control its body temperature
endotherm animal that generates its own body heat and controls its body temperature from within
monotoreme egg laying mammal
marsupial mammal which bears live young that complete their development in an external pouch
placenta organ in placental mammal through which nutrients oxygen co2 waste are exchanged between embryo and mother
gestation period time that an ebryo is developing
2 chambered heart heart with two chambers (fishes have this)
3 chambered heart heart with three chambers (amphibians and reptiles have this)
4chambered heart heart with four chambers (crocidiles birds and mammals have this)
Created by: ilymare
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